About this Research Topic
Climate change and population expansion are major global challenges to address food and nutritional security. Among them the issues associated with climate change are the more serious. It leads to increase in intensity and incidence of various biotic and abiotic stresses in crops. The abiotic stresses like extreme temperatures, poor water availability, excessive salt and mineral shortages, or toxicities all have a negative impact on cereal crop growth. Sustainability in cereal crop production could be achieved by the development of multiple stress tolerant genotypes with high production potential under variable environments. However, the nature of abiotic stress, incidence, intensity, and their combinations makes it very complex to develop stress tolerant genotypes. The understanding molecular, physiological, biochemical, and genetic response of abiotic stresses and their association effects and adoptions strategies of cereals against the abiotic stresses could help to accelerate the development of climate resilient or multiple stress tolerant genotypes.
There is a need for holistic approach in order to understand the effect of multiple stresses on plant growth, differentiation and yield. With the advent of new technologies, it has now become very easy to understand different pathways, roles of different key members and interactions operating inside the plants. We want to compile complete information about different stresses and mechanism of mitigation, as shown by different cereals at one page.
1. Understanding association among the abiotic stresses and identification of multiple stress tolerant genotypes in cereals: could be achieved by the evaluation of germplasm against the multiple stresses and their combinations through precision phenotyping under high throughput phenotyping facilities and field conditions.
2. Understanding the genetic responses of abiotic stresses and their combinations: could be achieved by development of bi-parental and magic populations, genome wide associations panel followed by identification of genomic locations (QTLs) associated with abiotic stress tolerance and Genomic selection (GS) approaches.
3. Gene identification and functional marker development for abiotic stress tolerance: could be achieved by map-based cloning, CRISPER-Cas 9 technique, genome sequencing and application of bioinformatic techniques.
4. Development of multiple abiotic stress tolerant genotypes of cereals: could be achieved through Marker assisted selection and transgenic development for multiple stress tolerance in cereals
Previously significant progress has been attained to understand the physiological, biochemical and genetic responses for tolerance to abiotic stresses in cereals. However, this has not translated in increasing the productivity of cereal crops. It may be due to very limited progress in understanding the combination effects of the abiotic stress. Therefore, in present research topic the focus will be on the following themes.
• To identify major agro-morphological responses under various stress conditions; heat, salinity, drought, radiation/ ozone
• Physiological and genetic interventions against multiple stresses
• Understanding the genetic responses of abiotic stresses and their combinations
• Genome wide association studies for abiotic stress, genomic selection and mapping QTLs
• Abiotic stress responsive miRNAs
• Molecular basis of abiotic stress cross talk
There is a need for holistic approach in order to understand the effect of multiple stresses on plant growth, differentiation and yield. With the advent of new technologies, it has now become very easy to understand different pathways, roles of different key members and interactions operating inside the plants. We want to compile complete information about different stresses and mechanism of mitigation, as shown by different cereals at one page.
1. Understanding association among the abiotic stresses and identification of multiple stress tolerant genotypes in cereals: could be achieved by the evaluation of germplasm against the multiple stresses and their combinations through precision phenotyping under high throughput phenotyping facilities and field conditions.
2. Understanding the genetic responses of abiotic stresses and their combinations: could be achieved by development of bi-parental and magic populations, genome wide associations panel followed by identification of genomic locations (QTLs) associated with abiotic stress tolerance and Genomic selection (GS) approaches.
3. Gene identification and functional marker development for abiotic stress tolerance: could be achieved by map-based cloning, CRISPER-Cas 9 technique, genome sequencing and application of bioinformatic techniques.
4. Development of multiple abiotic stress tolerant genotypes of cereals: could be achieved through Marker assisted selection and transgenic development for multiple stress tolerance in cereals
Previously significant progress has been attained to understand the physiological, biochemical and genetic responses for tolerance to abiotic stresses in cereals. However, this has not translated in increasing the productivity of cereal crops. It may be due to very limited progress in understanding the combination effects of the abiotic stress. Therefore, in present research topic the focus will be on the following themes.
• To identify major agro-morphological responses under various stress conditions; heat, salinity, drought, radiation/ ozone
• Physiological and genetic interventions against multiple stresses
• Understanding the genetic responses of abiotic stresses and their combinations
• Genome wide association studies for abiotic stress, genomic selection and mapping QTLs
• Abiotic stress responsive miRNAs
• Molecular basis of abiotic stress cross talk
Keywords: Abiotic stress, Molecular response, Physiological response, Genetic response, Adaptation, Cereals
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